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STI ATV Tires from Rocky Mountain ATV/MC

STI is dedicated to the design, development and manufacturing of high quality ATV and UTV tires. Their engineers are committed to developing tires that meet the highest standards and provide the greatest value to their customers. Rocky Mountain ATV/MC has many kinds of STI ATV tires, made for sand, snow, mud, tracks and trails. You can be sure any tire that Rocky Mountain ATV/MC sells is durable and built to last, but we also strive to provide incredible prices as well.

If you need two STI ATV tires, make sure you check out our ATV Tire and Wheel Builder Package which can save you up to 56%. Simply choose two tires and wheels using our filters search that will find the tires to fit your machine perfectly. Then our trained professionals will mount them for free and get them ready to be shipped along with the free valve stems you receive with your package. In addition, you also receive free ground shipping with any ATV Tire and Wheel Package.

Latest STI ATV Tires Reviews – You could win up to $500 for reviewing products!

  • STI Roctane XD Radial ATV Tire

    STI Roctane XD Radial ATV Tire

    TOMMY in KY

    Great all around tire

    First ride 30x10x14 Roctane did very well at Royal Blue TN . We had a lot of muddy conditions, and plenty of rocks and tree roots. Was in 2 wheel drive most of the time, very impressed with the tires, was running 8 psi in the rear and 6 psi in the front.

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  • STI Outback XT ATV Tire

    STI Outback XT ATV Tire

    Jerry in AZ

    Worst Tires We've Ever Used

    We have an off-road tour company with a fleet of 14 UTVs. We have used just about every tire out there and these tires are the worst we have ever used. We put them on the front of a few of our UTVs and we wore through the tread in less than 2 months. Very disappointing and we do not recommend buying this tire unless you are always running in soft ground.

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  • STI Tech 4 MX ATV Tire

    STI Tech 4 MX ATV Tire

    Erick in ON

    2005 Honda TRX450r mx quad

    These tires seem to hook up very well on semi hard pack terrain, however they loose a lot of traction in deep/ soft sand. They are very light and have a good resistance to punctures due to the 4 ply design. The tread seems to last very well and clean out mud. The cornering is very smooth and they give you a controlled slide around corners on a mx track. They are a low cost tire but they work just as good as a more expensive mx tire

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  • STI Tech 4 XC ATV Tire

    STI Tech 4 XC ATV Tire

    Craig in CO

    Great tire

    Installed a set on the kfx700. Tire hooks on just about everything, have not had it in the sand, ( have paddles for that) A must buy, 4 months old and still look new.

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  • STI Black Diamond XTR Radial ATV Tire

    STI Black Diamond XTR Radial ATV Tire

    Troy in SD

    Lacks control in hard turning.

    Doesn't hold up around cactus, even with Ride-On or Slime. Good traction in all conditions, but the softness of the tire is the weakness when turning.

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  • STI Sand Drifter Rear ATV Sand Tire

    STI Sand Drifter Rear ATV Sand Tire

    Tyler in WV

    Great looking tire

    Fit great

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